motivate and seduce my wife and fun with her

Hi. I am 60 year old married bi-curious average body man with a 58 year old BBW wife. I am straight but have always had bisexual cuckold fantasies. Up to now they have remained fantasies but I wish to make them come true. The problem however is that my wife needs to be motivated. I am serious and sincere about my fantasies and desires. I need sincere and decent mature male for her to do efforts to seduce her. if wife of that male motivate my wife than it will be better.

First you should love her. Love her sincerely. Than smoothly and slowly  you can seduce her and can have fun with her. so love should be there, than sex can follow in natural way.